Improved revolving- prow for vessels



intimi istias sind @Wina l Lenerspafmlvb. 95,763, dazed comme 12,1869. p

The Schedule referred tain these Iietter Patent 'and making part of the lame.

To all whom it may concern Be it known that l, DAVID BcoKwALTER, of Gardner, in the county of Grundy, and State -of Illinois, have invented certainnew and useful Improvements in Revolving Prow for Vessels, and I dchereby decla-re that the following is full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, and to the letters of reference marked thereon, like letters indicating like parts wherever they occur.-

To enable others skilled in the art to construct and use my invention, I willproceed to describe it.

Figure l represents the side elevation, of the prow, and the longitudinal section of a'vessel,

Figure 2 is thefront elevation, and Figures 3 and 4 are the perspective views et' the prow.

The nature of my invention consists in a prow for vessels, said prow so shaped and arranged that when the vessel is. put in, motion, by any means of propulsion in use, it revolves on its own axis, thereby producing -a power that can be readily utilized for certain useful purposes.

V is a vessel, the fore part'ot the hull H of which, Where it is joined to the prow, is made cylindrical, 'or

.bulging out slightly on its sides, if desirable, but is calculated to be made always of about the same diam'- eter as the prow is'.

P is the prow, consisting cfa cylinder firmly affixed to and balanced ou a shaft, A, suitably `iournalled in the front part of the vessel.

The prow is provided with` ,two slantng surfaces S S, cut out vof the body of the cylinder, as it were, the

one ofthe surfaces being ou one side of the axis of revolution, and the other equal surface on the. opposite side of it, the distance between the forward points of the slant-ing surfaces S S being equalto the diameter of the prow, the said surfaces crossing the said.

axis of revolution at any desirable angle. The prow is calculated to be entirely submerged, and the -front of the boat, above the upper line of the prow, to be of au ordinary shape.

The axle or sllai't'A of the prow may be provided with any desirable gear, for Athe purpose of transmitting the power to and driving any machinery on board the vessel, or on its sides on the' outside-such' as hoisting-apparatus, reeflngfapparatus, machines for crews purposes, additional side-wheels or oars, 85o., during the time the vessel is moving, or propelled by any ordinary means.

The resistance of water against the slanting ,surfaces 'S S of the prow, when the vessel is under way, causes the revolution of the prow,which furnishes the power to be used lfor the above-described and other" useful purposes.

' What I claim as my invention, and desire to secure by Letters Patent, is`

1.. The cylindrical rotating prow P, constructed and operating substantially as set forth,'aud for the purposes herein specified. I

2. In combination with the above, the cylindrical fore end of the hull H, substantially as set forth.

D. BOOKWALTEB.. Witnesses:

MARTIN L. Finnair, W. W. MCMANN, M. D. 

